Study of Printing and Dyeing Wastewater Treatment by Membrane Bioreactor Enhanced by Bio-Ferric

Abstract:

Bio-ferric membrane bioreactor(MBR) was made through adding ferric hydroxide to traditional MBR and forming bio-ferric sludge. Through analyzing treatment efficiency of dyeing and printing wastewater in bio-ferric MBR and traditional MBR respectively, the results showed: COD removal efficiency in bio-ferric MBR was more better than that in traditional MBR which increased 10% or so, but the influence of HRT on COD removal efficiency wasn’t evident; Via changing SRT, it was obtained: bio-ferric MBR could operate in longer SRT while treatment effect couldn’t be impacted that could discharge less sludge than traditional MBR which coule get sludge minimization; bio-ferric sludge flocs could provide better survival environment for nitrobacteria that made NH3-N removal efficiency stable. The experiment illuminated: the biochemical and physical function of bio-ferric sludge could strengthen the holistic stability of the system.

• Periodical: Advanced Materials Research (Volumes 183-185)
• Pages: 1456-1461
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.183-185.1456
• Online since: January 2011
• Authors: Shi Feng Ji, Chun Mei Gao, Hong Yang, Ming Chu, Chun Feng Wang
• Keywords: Bio-Ferric, Dyeing Wastewater, Membrane Bioreactor (MBR), Printing Wastewater, Sludge

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